step(al,ii,tm(s,[ctxm(pi_,u,ip,ip_al_1,ip_al_1),ctxm(pi_,idp1,ip,ip_ii,ip_ii)],pri(lst,[pri(lst,[pri(lst,[ctxm(pi_,dot,id_c,iid_c,iid_c),pri(pk,[ctxm(pi_,dot,kM_c,kM_c,kM_c)]),ctxm(pi_,dot,n_c,in_c,cn_c)]),pri(sig,[pri(lst,[ctxm(pi_,dot,id_c,iid_c,iid_c),pri(pk,[ctxm(pi_,dot,kM_c,kM_c,kM_c)]),ctxm(pi_,dot,n_c,in_c,cn_c)]),ctxm(pi_,ca,kM,kM_ca,kM_ca)])]),ctxm(pi_,dot,n_a,ss(pi_,i_n_a),ss(pi_,c_n_a))]))).